Transfer Function Properties dialog showing the default sample region.

A comet image was opened using the default sample region shown above. Then the Image Cursor was positioned over the bright comet nucleus and the Capture Cursor to TF command was used.

This shows the Transfer Function Properties dialog with new sample region inserted by using the Capture Cursor to TF command with the small cursor shown in the previous image. Note that the new region parameters were saved with a new profile name.

This shows the same comet image opened using the sample region shown above. With the small sample size, the image is scaled according to the bright nucleus, leaving the remainder of the image nearly black. The Image Cursor was then enlarged and positioned over a large region of faint structure to the upper right of the comet nucleus. Executing the Capture Cursor to TF command then opens the Transfer Function Properties dialog with the sample region shown below.

This shows the Transfer Function Properties dialog with new sample region inserted by using the Capture Cursor to TF command with the larger cursor shown in the previous image. Note that the new region parameters were saved with a new profile name.

This shows the same comet image opened using the larger sample region shown above which encloses a large region of faint structure in the comet.